neobytes/src/threadinterrupt.h
Oleg Girko 42c784dc7a Backport Bitcoin PR#9289: net: drop boost::thread_group (#1568)
* net: a few small cleanups before replacing boost threads

- Drop the interruption point directly after the pnode allocation. This would
    be leaky if hit.
- Rearrange thread creation so that the socket handler comes first

* net: add CThreadInterrupt and InterruptibleSleep

* net: make net interruptible

Also now that net threads are interruptible, switch them to use std
threads/binds/mutexes/condvars.

* net: make net processing interruptible

* net: remove thread_interrupted catch

This is now a std::thread, so there's no hope of catching a boost interruption
point.

* net: make proxy receives interruptible

* net: misc header cleanups
2017-08-09 19:06:31 +03:00

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// Copyright (c) 2016 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_THREADINTERRUPT_H
#define BITCOIN_THREADINTERRUPT_H
#include <atomic>
#include <chrono>
#include <condition_variable>
#include <mutex>
/*
A helper class for interruptible sleeps. Calling operator() will interrupt
any current sleep, and after that point operator bool() will return true
until reset.
*/
class CThreadInterrupt
{
public:
explicit operator bool() const;
void operator()();
void reset();
bool sleep_for(std::chrono::milliseconds rel_time);
bool sleep_for(std::chrono::seconds rel_time);
bool sleep_for(std::chrono::minutes rel_time);
private:
std::condition_variable cond;
std::mutex mut;
std::atomic<bool> flag;
};
#endif //BITCOIN_THREADINTERRUPT_H